diff options
Diffstat (limited to 'arch/powerpc/kernel/vdso32/Makefile')
| -rw-r--r-- | arch/powerpc/kernel/vdso32/Makefile | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile index 73eada6bc8cd..59aa2944ecae 100644 --- a/arch/powerpc/kernel/vdso32/Makefile +++ b/arch/powerpc/kernel/vdso32/Makefile @@ -2,8 +2,20 @@ # List of files in the vdso, has to be asm only for now +ARCH_REL_TYPE_ABS := R_PPC_JUMP_SLOT|R_PPC_GLOB_DAT|R_PPC_ADDR32|R_PPC_ADDR24|R_PPC_ADDR16|R_PPC_ADDR16_LO|R_PPC_ADDR16_HI|R_PPC_ADDR16_HA|R_PPC_ADDR14|R_PPC_ADDR14_BRTAKEN|R_PPC_ADDR14_BRNTAKEN +include $(srctree)/lib/vdso/Makefile + obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o getcpu.o +ifneq ($(c-gettimeofday-y),) + CFLAGS_vgettimeofday.o += -include $(c-gettimeofday-y) + CFLAGS_vgettimeofday.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) + CFLAGS_vgettimeofday.o += $(call cc-option, -fno-stack-protector) + CFLAGS_vgettimeofday.o += -DDISABLE_BRANCH_PROFILING + CFLAGS_vgettimeofday.o += -ffreestanding -fasynchronous-unwind-tables + CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) +endif + # Build rules ifdef CROSS32_COMPILE @@ -15,14 +27,16 @@ endif CC32FLAGS := ifdef CONFIG_PPC64 CC32FLAGS += -m32 +KBUILD_CFLAGS := $(filter-out -mcmodel=medium,$(KBUILD_CFLAGS)) endif -targets := $(obj-vdso32) vdso32.so vdso32.so.dbg +targets := $(obj-vdso32) vdso32.so.dbg obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32)) GCOV_PROFILE := n KCOV_INSTRUMENT := n UBSAN_SANITIZE := n +KASAN_SANITIZE := n ccflags-y := -shared -fno-common -fno-builtin -nostdlib \ -Wl,-soname=linux-vdso32.so.1 -Wl,--hash-style=both @@ -33,33 +47,30 @@ targets += vdso32.lds CPPFLAGS_vdso32.lds += -P -C -Upowerpc # Force dependency (incbin is bad) -$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so +$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so.dbg # link rule for the .so file, .lds has to be first -$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE - $(call if_changed,vdso32ld) - -# strip rule for the .so file -$(obj)/%.so: OBJCOPYFLAGS := -S -$(obj)/%.so: $(obj)/%.so.dbg FORCE - $(call if_changed,objcopy) +$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) $(obj)/vgettimeofday.o FORCE + $(call if_changed,vdso32ld_and_check) # assembly rules for the .S files $(obj-vdso32): %.o: %.S FORCE $(call if_changed_dep,vdso32as) +$(obj)/vgettimeofday.o: %.o: %.c FORCE + $(call if_changed_dep,vdso32cc) + +# Generate VDSO offsets using helper script +gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh +quiet_cmd_vdsosym = VDSOSYM $@ + cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@ + +include/generated/vdso32-offsets.h: $(obj)/vdso32.so.dbg FORCE + $(call if_changed,vdsosym) # actual build commands -quiet_cmd_vdso32ld = VDSO32L $@ - cmd_vdso32ld = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) +quiet_cmd_vdso32ld_and_check = VDSO32L $@ + cmd_vdso32ld_and_check = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) ; $(cmd_vdso_check) quiet_cmd_vdso32as = VDSO32A $@ cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) -c -o $@ $< - -# install commands for the unstripped file -quiet_cmd_vdso_install = INSTALL $@ - cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ - -vdso32.so: $(obj)/vdso32.so.dbg - @mkdir -p $(MODLIB)/vdso - $(call cmd,vdso_install) - -vdso_install: vdso32.so +quiet_cmd_vdso32cc = VDSO32C $@ + cmd_vdso32cc = $(VDSOCC) $(c_flags) $(CC32FLAGS) -c -o $@ $< |